/Engine/Source/Runtime/Engine/Public/LevelInstance/LevelInstanceComponent.h
const [TMap](API\Runtime\Core\Containers\TMap)< [FActorContainerID](API\Runtime\Engine\WorldPartition\FActorContainerID), [TSet](API\Runtime\Core\Containers\TSet)< [FGuid](API\Runtime\Core\Misc\FGuid) > > & GetFilteredActorsPerContainer() const